ComMarker B4 Settings & Speeds

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Permanent black logo or serial on blade. Corrosion-resistant mark.

Black oxidation mark on tool steel or knife blanks.

White matte mark on raw aluminum sheet. Clean contrast.

White frost on dark slate. Great for coasters and plaques.

Bright silver contrast against black oxide finish.

Good contrast on raw aluminum. No coating needed.

White bright mark on raw aluminum. Fast cycle time.

Clamp flat. Consistent black mark across the piece.

High-contrast mark. Fill hatching at 0.05mm line spacing.

Permanent black mark. Runs 30 seconds per tag at this setting.

Black mark on chrome lid. Clean result; open lighter during marking.

Dark mark on nickel. Consistent results; nickel absorbs fiber well.

Very low power — gold layer is thin. Test on scrap first.

Delicate mark on silver. Low power to avoid melting fine detail.

Removes powder coat cleanly. Bright aluminum finish underneath.

Burns through coating to bright steel below. Crisp edge at 75%.

Black mark on chrome. Don't over-power or chrome may crack.

Copper reflects IR; needs high power. Result is dark brown-black mark.

Dark oxidation mark on raw brass. Polish after if bright finish desired.

Blue-gold interference color. Speed and power affect hue.

Removes coating cleanly. Use rotary. Tape edges to protect finish.

Rotary required. Deep mark survives dishwasher.

Deep black oxidation mark. Stable and corrosion-resistant.

Bright contrast on black anodized. Lower power avoids over-burning.

Clean white reveal on black anodized. 500 DPI for fine detail.

Removes powder coat to expose bare steel underneath. Slightly defocus (+2mm) for cleaner coating ablation on curved objects. Consistent results across most powder coat brands. Based on LightBurn forum painted tumbler thread and general MOPA coated metal guidance. | Freq: 40kHz, pulse: 100ns, line interval: 0.05mm

Annealing produces vivid colors on titanium. Low power + high frequency + short pulse = stable oxide colors. Real-world forum data (Tykma 20W): 200mm/s, 35%, 125kHz, .02 line spacing, 2 passes. Colors vary by exact settings — run a frequency/power test tile first. | Freq: 125kHz, pulse: 20ns, line interval: 0.02mm

Copper is highly reflective at 1064nm — 20W is marginal. Run at maximum power, slow speed, multiple passes. Result may be shallow or inconsistent; copper engraving is more reliable at 50W+. Based on heatsign guide + community notes. | Freq: 30kHz, pulse: 200ns, line interval: 0.04mm

Brass absorbs 1064nm well. No air assist to avoid discoloration. Starting point for surface contrast mark. Deep engraving requires many more passes (see 60W forum data — scale up passes for 20W). Based on omglaser.com brass settings scaled for 20W. | Freq: 45kHz, pulse: 100ns, line interval: 0.04mm

White/light mark on black anodize. Short pulse + high frequency key for contrast without charring. 30W reference from barchlaser.com scaled down for 20W (reduce speed by ~25%). Very common for dog tags and ID plates. | Freq: 55kHz, pulse: 4ns, line interval: 0.04mm

MOPA short pulse (4–20 ns) at high frequency ablates anodize without burning base aluminum. High speed avoids heat buildup. Based on barchlaser.com MOPA aluminum black settings and heatsign.com MOPA anodized aluminum guide. | Freq: 60kHz, pulse: 4ns, line interval: 0.05mm

Reported directly on LightBurn forum thread 'ComMarker B4 20W Fiber Laser Tumbler Settings' by a B4 owner. Bi-directional fill. Rotary attachment required. Higher frequency softens impact on curved coated surfaces. | Freq: 55kHz, pulse: 200ns, line interval: 0.05mm

For deeper mechanical removal rather than surface oxide. Slower speed + lower frequency for more aggressive ablation. Based on barchlaser.com 20W settings and community scaling from 30W data. | Freq: 20kHz, pulse: 200ns, line interval: 0.03mm

Produces a dark oxide mark. Lower frequency (20–30 kHz) gives darker result. ComMarker official material settings page + LightBurn forum confirmation. Run a material test grid before production. | Freq: 25kHz, pulse: 200ns, line interval: 0.054mm

Removes powder coat cleanly. Use rotary attachment. High throughput for tumbler businesses.

Gentle mark for plated pieces. Low power to avoid damaging plating layer. Always test on a piece of scrap.

Clean dark mark on brass. Great for trophies and decorative pieces.

High contrast removal of anodizing. Fast throughput at 30W. Works on all anodize colours.

What materials can the ComMarker B4 engrave or cut?

The ComMarker B4 has community-tested settings for Stainless Steel Knife Blade, Carbon Steel, Bare Aluminum, Slate, Black Oxide Stainless Steel, Aluminum Dog Tag, Aluminum Keychain, Stainless Steel Keychain, and 18 more. Results vary by material batch, focus, and ambient conditions — always test on scrap first.

Is the ComMarker B4 compatible with LightBurn?

Yes, the ComMarker B4 works natively with LightBurn, as well as EzCad2.

Can the ComMarker B4 mark bare metal without any coating?

Yes. Fiber lasers mark stainless steel, brass, copper, titanium, and anodized aluminium directly — no Cermark or marking spray needed. This is the main advantage of fiber over CO₂ or diode machines for metal personalisation.